VERIZON FIOS blocking all EMAIL ports?

gamer99 · ‎03-30-2014

I have been working on this for 2 weeks. I am so frustrated. I think VERIZON FIOS is blocking all my EMAIL ports. I have a FEDORA 20 LINUX server setup with SENDMAIL. and I am unable to send email out to my YAHOO or GMAIL inbox.

I have setup everything. Forwarded ports on my ROUTER. allowed ports in my IPTABLES, assigned the port in my sendmail.mc file. forwarded ports in my LINUX server. It is still not sending mail out to my YAHOO inbox.

Anyone know VERIZON is blocking all the ports?

Anti-Phish1 · ‎03-30-2014

What port are you trying to use outbound?

VZ blocks port 25 outbound on residential accounts.

No ports are blocked inbound.

gamer99 · ‎03-30-2014

I have forwarded port 25 on my ROUTER.

here is my sendmail.mc output file

divert(-1)dnl
dnl #
dnl # This is the sendmail macro config file for m4. If you make changes to
dnl # /etc/mail/sendmail.mc, you will need to regenerate the
dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf package is
dnl # installed and then performing a
dnl #
dnl #     /etc/mail/make
dnl #
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for linux')dnl
OSTYPE(`linux')dnl
dnl #
dnl # Do not advertize sendmail version.
dnl #
dnl define(`confSMTP_LOGIN_MSG', `$j Sendmail; $b')dnl
dnl #
dnl # default logging level is 9, you might want to set it higher to
dnl # debug the configuration
dnl #
define(`confLOG_LEVEL', `69')dnl
dnl #
dnl # Uncomment and edit the following line if your outgoing mail needs to
dnl # be sent out through an external mail server:
dnl #
define(`SMART_HOST', `smtp.isp.net')dnl
define(`RELAY_MAILER_ARGS', `TCP $h 587')dnl
FEATURE(authinfo)dnl
dnl #
define(`confDEF_USER_ID', ``8:12'')dnl
dnl define(`confAUTO_REBUILD')dnl
define(`confTO_CONNECT', `1m')dnl
define(`confTRY_NULL_MX_LIST', `True')dnl
define(`confDONT_PROBE_INTERFACES', `True')dnl
define(`PROCMAIL_MAILER_PATH', `/usr/bin/procmail')dnl
define(`ALIAS_FILE', `/etc/aliases')dnl
define(`STATUS_FILE', `/var/log/mail/statistics')dnl
define(`UUCP_MAILER_MAX', `2000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confAUTH_OPTIONS', `A')dnl
dnl #
dnl # The following allows relaying if the user authenticates, and disallows
dnl # plaintext authentication (PLAIN/LOGIN) on non-TLS links
dnl #
dnl define(`confAUTH_OPTIONS', `A p')dnl
dnl # 
dnl # PLAIN is the preferred plaintext authentication method and used by
dnl # Mozilla Mail and Evolution, though Outlook Express and other MUAs do
dnl # use LOGIN. Other mechanisms should be used if the connection is not
dnl # guaranteed secure.
dnl # Please remember that saslauthd needs to be running for AUTH. 
dnl #
dnl TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl #
dnl # Rudimentary information on creating certificates for sendmail TLS:
dnl #     cd /etc/pki/tls/certs; make sendmail.pem
dnl # Complete usage:
dnl #     make -C /etc/pki/tls/certs usage
dnl #
dnl define(`confCACERT_PATH', `/etc/pki/tls/certs')dnl
dnl define(`confCACERT', `/etc/pki/tls/certs/ca-bundle.crt')dnl
dnl define(`confSERVER_CERT', `/etc/pki/tls/certs/sendmail.pem')dnl
dnl define(`confSERVER_KEY', `/etc/pki/tls/certs/sendmail.pem')dnl
dnl #
dnl # This allows sendmail to use a keyfile that is shared with OpenLDAP's
dnl # slapd, which requires the file to be readble by group ldap
dnl #
dnl define(`confDONT_BLAME_SENDMAIL', `groupreadablekeyfile')dnl
dnl #
dnl define(`confTO_QUEUEWARN', `4h')dnl
dnl define(`confTO_QUEUERETURN', `5d')dnl
dnl define(`confQUEUE_LA', `12')dnl
dnl define(`confREFUSE_LA', `18')dnl
define(`confTO_IDENT', `0')dnl
dnl # If you're operating in a DSCP/RFC-4594 environment with QoS
dnl define(`confINET_QOS', `AF11')dnl
dnl FEATURE(delay_checks)dnl
FEATURE(`no_default_msa', `dnl')dnl
FEATURE(`smrsh', `/usr/sbin/smrsh')dnl
FEATURE(`mailertable', `hash -o /etc/mail/mailertable.db')dnl
FEATURE(`virtusertable', `hash -o /etc/mail/virtusertable.db')dnl
FEATURE(redirect)dnl
FEATURE(always_add_domain)dnl
FEATURE(use_cw_file)dnl
FEATURE(use_ct_file)dnl
dnl #
dnl # The following limits the number of processes sendmail can fork to accept 
dnl # incoming messages or process its message queues to 20.) sendmail refuses 
dnl # to accept connections once it has reached its quota of child processes.
dnl #
dnl define(`confMAX_DAEMON_CHILDREN', `20')dnl
dnl #
dnl # Limits the number of new connections per second. This caps the overhead 
dnl # incurred due to forking new sendmail processes. May be useful against 
dnl # DoS attacks or barrages of spam. (As mentioned below, a per-IP address 
dnl # limit would be useful but is not available as an option at this writing.)
dnl #
dnl define(`confCONNECTION_RATE_THROTTLE', `3')dnl
dnl #
dnl # The -t option will retry delivery if e.g. the user runs over his quota.
dnl #
FEATURE(local_procmail, `', `procmail -t -Y -a $h -d $u')dnl
FEATURE(`access_db', `hash -T<TMPF> -o /etc/mail/access.db')dnl
FEATURE(`blacklist_recipients')dnl
EXPOSED_USER(`root')dnl
dnl #
dnl # For using Cyrus-IMAPd as POP3/IMAP server through LMTP delivery uncomment
dnl # the following 2 definitions and activate below in the MAILER section the
dnl # cyrusv2 mailer.
dnl #
dnl define(`confLOCAL_MAILER', `cyrusv2')dnl
dnl define(`CYRUSV2_MAILER_ARGS', `FILE /var/lib/imap/socket/lmtp')dnl
dnl #
dnl # The following causes sendmail to only listen on the IPv4 loopback address
dnl # 127.0.0.1 and not on any other network devices. Remove the loopback
dnl # address restriction to accept email from the internet or intranet.
dnl #
dnl # DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 587 for
dnl # mail from MUAs that authenticate. Roaming users who can't reach their
dnl # preferred sendmail daemon due to port 25 being blocked or redirected find
dnl # this useful.
dnl #
dnl DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 465, but
dnl # starting immediately in TLS mode upon connecting. Port 25 or 587 followed
dnl # by STARTTLS is preferred, but roaming clients using Outlook Express can't
dnl # do STARTTLS on ports other than 25. Mozilla Mail can ONLY use STARTTLS
dnl # and doesn't support the deprecated smtps; Evolution <1.1.1 uses smtps
dnl # when SSL is enabled-- STARTTLS support is available in version 1.1.1.
dnl #
dnl # For this to work your OpenSSL certificates must be configured.
dnl #
dnl DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl
dnl #
dnl # The following causes sendmail to additionally listen on the IPv6 loopback
dnl # device. Remove the loopback address restriction listen to the network.
dnl #
dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')dnl
dnl #
dnl # enable both ipv6 and ipv4 in sendmail:
dnl #
dnl DAEMON_OPTIONS(`Name=MTA-v4, Family=inet, Name=MTA-v6, Family=inet6')
dnl #
dnl # We strongly recommend not accepting unresolvable domains if you want to
dnl # protect yourself from spam. However, the laptop and users on computers
dnl # that do not have 24x7 DNS do need this.
dnl #
dnl # FEATURE(`accept_unresolvable_domains')dnl
dnl #
dnl FEATURE(`relay_based_on_MX')dnl
dnl # 
dnl # Also accept email sent to "localhost.localdomain" as local email.
dnl # 
LOCAL_DOMAIN(`localhost.localdomain')dnl
dnl #
dnl # The following example makes mail from this host and any additional
dnl # specified domains appear to be sent from mydomain.com
dnl #
dnl MASQUERADE_AS(`mydomain.com')dnl
dnl #
dnl # masquerade not just the headers, but the envelope as well
dnl #
dnl FEATURE(masquerade_envelope)dnl
dnl #
dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as well
dnl #
dnl FEATURE(masquerade_entire_domain)dnl
dnl #
dnl MASQUERADE_DOMAIN(localhost)dnl
dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl
dnl MASQUERADE_DOMAIN(mydomain.lan)dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
dnl MAILER(cyrusv2)dnl

systemctl status sendmail.service

systemctl status sendmail.service -l
sendmail.service - Sendmail Mail Transport Agent
   Loaded: loaded (/usr/lib/systemd/system/sendmail.service; enabled)
   Active: active (running) since Sun 2014-03-30 10:55:40 CDT; 3min 59s ago
  Process: 16300 ExecStart=/usr/sbin/sendmail -bd $SENDMAIL_OPTS $SENDMAIL_OPTARG (code=exited, status=0/SUCCESS)
  Process: 16295 ExecStartPre=/etc/mail/make aliases (code=exited, status=0/SUCCESS)
  Process: 16293 ExecStartPre=/etc/mail/make (code=exited, status=0/SUCCESS)
 Main PID: 16301 (sendmail)
   CGroup: /system.slice/sendmail.service
           ├─16301 sendmail: accepting connection
           └─16302 sendmail: ./s2UA9XT2013622 smtp.verizon.net.: client greetin

Mar 30 10:55:40 fedoraserver sendmail[16301]: starting daemon (8.14.8): SMTP+queueing@01:00:00
Mar 30 10:55:40 fedoraserver systemd[1]: Started Sendmail Mail Transport Agent.
Mar 30 10:57:40 fedoraserver sendmail[16218]: s2UA9XT2013622: timeout waiting for input from smtp.verizon.net. during client QUIT

gamer99 · ‎03-30-2014

my IPTBALES on my linux server.

Chain IN_public_allow (1 references)

target prot opt source destination

ACCEPT udp -- anywhere 224.0.0.251 udp dpt:mdns ctstate NEW

ACCEPT tcp -- anywhere anywhere tcp dpt:http ctstate NEW

ACCEPT tcp -- anywhere anywhere tcp dpts:rfb:5903 ctstate NEW

ACCEPT tcp -- anywhere anywhere tcp dpt:smtp ctstate NEW

ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ctstate NEW

ACCEPT tcp -- anywhere anywhere tcp dpt:https ctstate NEW

ACCEPT tcp -- anywhere anywhere tcp dpt:mysql ctstate NEW

ACCEPT tcp -- anywhere anywhere tcp dpt:submission ctstate NEW

ACCEPT tcp -- anywhere anywhere tcp dpt:urd ctstate NEW

viafax999 · ‎03-30-2014

Verizon blocks port 25 outbound

Port 465 is used for the gmail smtp server

I use port 465 for the Verizon smtp server too.

Are you perhaps not passing your Verizon email userid and password to the outbound verizon smtp server??

gamer99 · ‎03-30-2014

okay, so in my sendmail.mc file

I have a AUTHINFO file in my mail directory that have the usernam and password information.

AuthInfo:localhost.localdomain "U:root" "I:myuser@att.net" "P:password" "M:LOGIN PLAIN"

AuthInfo:localhost.localdomain "U:user@verizon.net" "I:user@verizon.net" "P:password" "M:PLAIN"

Is this correct. I changed the RELAY port to 465

and wherever it is asking for a domain name. I replaced it with my appropriate domain. Which I got from

I am using DNS from --> no-ip.biz.

define(`SMART_HOST', `smtp.verizon.net')dnl
define(`RELAY_MAILER_ARGS', `TCP $h 465')dnl
FEATURE(authinfo)dnl

tns2 · ‎03-30-2014

@Anti-Phish wrote:
What port are you trying to use outbound?
VZ blocks port 25 outbound on residential accounts.
No ports are blocked inbound.

Except to authorized verizon email servers and business accounts 25 is just plain blocked in transit through verizon servers

viafax999 · ‎03-30-2014

@Anti-Phish wrote:
What port are you trying to use outbound?
VZ blocks port 25 outbound on residential accounts.
No ports are blocked inbound.

Well actually I would say that all inbound ports are blocked unless you choose to open them via a port forwarding rule..

tns2 · ‎03-30-2014

@viafax999 wrote:
@Anti-Phish wrote:
What port are you trying to use outbound?
VZ blocks port 25 outbound on residential accounts.
No ports are blocked inbound.
Well actually I would say that all inbound ports are blocked unless you choose to open them via a port forwarding rule..

More than that. Unless you have a business account port 25 traffic will not reach your location. Has nothing to do with what is blocked in your router.

viafax999 · ‎03-30-2014

I'll believe you.

I never had anything listening on port 25 so never bothered to see if it could be opened.

I figure his issue is that he's not providing the userid and password for access to smtp.verizon.net.

gamer99 · ‎03-30-2014

I have already put the userid and password information in my AUTHINFO file, but still my sendmail is unable send out emails to YAHOO or GMAIL.

I am confused as to what I am doing wrong?

viafax999 · ‎03-30-2014

Are you sending encrypted?

When I removed the ssl setting for outbound smtp I cannot send - connection times out. Put ssl back and it works fine.

gamer99 · ‎03-30-2014

where would I put in the SSL setting in my sendmail.mc file?

viafax999 · ‎03-30-2014

@cyberdome wrote:
where would I put in the SSL setting in my sendmail.mc file?

I'm afraid I have no idea. I'm testing your questions using my outlook 2010 client under Windows 7 and in there I certainly have to make my outbound connections SSL else it won't let me send.

I should have remembered about the Outlook issues with consoldiating multiple pop client to one receiver!! Each time I muck up the settings the outlook bug makes me receive all the held mail in the remote mail boxes. Just had to delete 514 duplcate emails for the second time. Luckily someone wrote the remove duplicate messages and put it on OutlookFreeware.com some time back just to address the issue. Ah well, I should upgrade to Outlook 2013 anyway as I believe they finally have fixed the issue there.

I have to believe that in the Linux world there is some way to set other than plain text sending.

Have you tried using a regular windows client from your home network just to make sure there is no issue with the userid and password that you are attempting to use?

gamer99 · ‎03-30-2014

Just tested it on my WINDOWS machine separate computer with OUTLOOK, using and I am able to send a test email to my YAHOO inbox and GMAIL inbox.

For some reason, My EMAIL linux server is not able to send out email to yahoo inbox or gmail

viafax999 · ‎04-02-2014

For gmail at least it will be the same reason that it can't send to smtp.verizon.net - the outgoing connection needs to be encrypted - ssl

Don't know about yahoo as I've never attempted to send mail via that using a remote client.

gamer99 · ‎04-02-2014

SOLUTION -->

As it turns out, Verizon FIOS is blocking all OUTGOING email ports, Verizon is not allowing relaying at all. I was able to use GMAIL SMTP port 587server. I configured POSTFIX to use GMAIL as relay.

http://mhawthorne.net/posts/postfix-...-as-relay.html

http://www.howtoforge.com/postfix_re...her_mailserver

Few changes to configuration. Before, I could check my mail queue. All mails gone already. LOL

My statement is a opinion. So, I am not entirely 100% sure that Verizon is blocking my outgoing ports. But right now Gmail works for me. I am gonna worry about the verizon issue later on.

gamer99 · ‎03-30-2014

No, I don't think it is encrypted. How to add SSL?

viafax999 · ‎03-30-2014

Same with Gmail.

If I remove the ssl setting for smtp.gmail.com the send fails with a timeout. Have to send the data encrypted.

tns2 · ‎03-30-2014

As said port 25 is blocked. INBOUND AND OUTBOUND EXCEPT TO VERIZON SERVERS.

Discussions

Mobile

5G / LTE Home Internet

Fios

Accessories

Entertainment

Level Up

Help

Tutorials

Archives

VERIZON FIOS blocking all EMAIL ports?

Browse discussions within categories

Add thoughts to the community